Broadband solar absorption enhancement via periodic nanostructuring of electrodes.

Handle URI:
http://hdl.handle.net/10754/596773
Title:
Broadband solar absorption enhancement via periodic nanostructuring of electrodes.
Authors:
Adachi, Michael M; Labelle, André J; Thon, Susanna M; Lan, Xinzheng; Hoogland, Sjoerd; Sargent, Edward H
Abstract:
Solution processed colloidal quantum dot (CQD) solar cells have great potential for large area low-cost photovoltaics. However, light utilization remains low mainly due to the tradeoff between small carrier transport lengths and longer infrared photon absorption lengths. Here, we demonstrate a bottom-illuminated periodic nanostructured CQD solar cell that enhances broadband absorption without compromising charge extraction efficiency of the device. We use finite difference time domain (FDTD) simulations to study the nanostructure for implementation in a realistic device and then build proof-of-concept nanostructured solar cells, which exhibit a broadband absorption enhancement over the wavelength range of λ = 600 to 1,100 nm, leading to a 31% improvement in overall short-circuit current density compared to a planar device containing an approximately equal volume of active material. Remarkably, the improved current density is achieved using a light-absorber volume less than half that typically used in the best planar devices.
Citation:
Adachi MM, Labelle AJ, Thon SM, Lan X, Hoogland S, et al. (2013) Broadband solar absorption enhancement via periodic nanostructuring of electrodes. Scientific Reports 3. Available: http://dx.doi.org/10.1038/srep02928.
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
KAUST Grant Number:
KUS-11-009-21
Issue Date:
14-Oct-2013
DOI:
10.1038/srep02928
PubMed ID:
24121519
PubMed Central ID:
PMC3796292
Type:
Article
ISSN:
2045-2322
Sponsors:
This publication is based in part on work supported by an award (KUS-11-009-21) from the King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. The authors thank E. Palmiano, R. Wolowiec, D. Kopilovic, J. Flexman, J. Ing, and A. Barriere for their support during this work. The authors also thank G. Barber for optical constant measurements for the TiO<INF>2</INF> and MoO<INF>3</INF> films, and O. Voznyy, J.Y. Kim, I. J. Kramer, C. T. O. Wong, and A. Lee for valuable discussions, and A. Arjmand and N. Lui at Lumerical for technical support. M. M. A. was supported by a MITACS fellowship. X. L. would like to acknowledge a scholarship from the China Scholarship Council (CSC).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorAdachi, Michael Men
dc.contributor.authorLabelle, André Jen
dc.contributor.authorThon, Susanna Men
dc.contributor.authorLan, Xinzhengen
dc.contributor.authorHoogland, Sjoerden
dc.contributor.authorSargent, Edward Hen
dc.date.accessioned2016-02-21T08:50:23Zen
dc.date.available2016-02-21T08:50:23Zen
dc.date.issued2013-10-14en
dc.identifier.citationAdachi MM, Labelle AJ, Thon SM, Lan X, Hoogland S, et al. (2013) Broadband solar absorption enhancement via periodic nanostructuring of electrodes. Scientific Reports 3. Available: http://dx.doi.org/10.1038/srep02928.en
dc.identifier.issn2045-2322en
dc.identifier.pmid24121519en
dc.identifier.doi10.1038/srep02928en
dc.identifier.urihttp://hdl.handle.net/10754/596773en
dc.description.abstractSolution processed colloidal quantum dot (CQD) solar cells have great potential for large area low-cost photovoltaics. However, light utilization remains low mainly due to the tradeoff between small carrier transport lengths and longer infrared photon absorption lengths. Here, we demonstrate a bottom-illuminated periodic nanostructured CQD solar cell that enhances broadband absorption without compromising charge extraction efficiency of the device. We use finite difference time domain (FDTD) simulations to study the nanostructure for implementation in a realistic device and then build proof-of-concept nanostructured solar cells, which exhibit a broadband absorption enhancement over the wavelength range of λ = 600 to 1,100 nm, leading to a 31% improvement in overall short-circuit current density compared to a planar device containing an approximately equal volume of active material. Remarkably, the improved current density is achieved using a light-absorber volume less than half that typically used in the best planar devices.en
dc.description.sponsorshipThis publication is based in part on work supported by an award (KUS-11-009-21) from the King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. The authors thank E. Palmiano, R. Wolowiec, D. Kopilovic, J. Flexman, J. Ing, and A. Barriere for their support during this work. The authors also thank G. Barber for optical constant measurements for the TiO<INF>2</INF> and MoO<INF>3</INF> films, and O. Voznyy, J.Y. Kim, I. J. Kramer, C. T. O. Wong, and A. Lee for valuable discussions, and A. Arjmand and N. Lui at Lumerical for technical support. M. M. A. was supported by a MITACS fellowship. X. L. would like to acknowledge a scholarship from the China Scholarship Council (CSC).en
dc.publisherNature Publishing Groupen
dc.rightsThis work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visiten
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.titleBroadband solar absorption enhancement via periodic nanostructuring of electrodes.en
dc.typeArticleen
dc.identifier.journalScientific Reportsen
dc.identifier.pmcidPMC3796292en
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada.en
kaust.grant.numberKUS-11-009-21en

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